<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
		<script src="js/jquery-3.7.0.js"></script>
	</head>
	<body>
		<div>1</div>
		<div id="d1">2</div>
		<div class="d2">3</div>
		<div>4</div>
		
		<script type="text/javascript">
			console.log($($("div").get(0))[0].innerHTML)  //jQuery对象
			console.log($("#d1")[0].innerHTML)
			console.log($(".d2")[0].innerHTML)
			console.log($(".d2+div")[0].innerHTML)
		</script>
		
	</body>
</html>
